A Wisconsin Proposal Bid Bond is a legally binding agreement between a contractor and an owner/contracting party to guarantee that the contractor will enter into a contract if they are the successful bidder for the project. It is typically issued to protect the owner from financial loss in the event that the contractor fails to fulfill their bid. The owner is paid a percentage of the bid amount, usually 10%, if the contractor fails to meet the requirements of the contract. There are two types of Wisconsin Proposal Bid Bonds: a Performance Bond and a Payment Bond. A Performance Bond guarantees that the contractor will perform all the terms and conditions of the contract specified in the bid. A Payment Bond guarantees that the contractor will pay all subcontractors, laborers, and suppliers in full for the work provided during the project.